Final answer:
Graham's Law of Diffusion can be used to calculate the time for diffusion of gases based on their molecular weights.
Explanation:
Diffusion is the process where particles spread out from regions of high concentration to regions of low concentration. In this case, the diffusion rate is directly proportional to the square root of the molecular weight of the gas. Using Graham's Law of Diffusion, we can calculate the time it would take for 300 ml of carbon dioxide gas to diffuse through the same membrane.
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